To expand on your point, this is highly profitable for advertisers and probably useful for three-letter agencies (CIA, NSA) to have people in highly "segregated" web forums where they only hear from like-minded people and are not challenged on their views, and where the mainstream/default forums (FB, Twitter) are pretty much only state-approved content and censor any meaningful discussion or criticism. It is really a loss to not have town halls or some type of open forum for debate. But then again, critical thinking isn't really a part of the K-12 educational system and is certainly not encouraged here in the US for adults either.
To expand on your point, this is highly profitable for advertisers and probably useful for three-letter agencies (CIA, NSA) to have people in highly "segregated" web forums where they only hear from like-minded people and are not challenged on their views, and where the mainstream/default forums (FB, Twitter) are pretty much only state-approved content and censor any meaningful discussion or criticism. It is really a loss to not have town halls or some type of open forum for debate. But then again, critical thinking isn't really a part of the K-12 educational system and is certainly not encouraged here in the US for adults either.